647848548158 has 144 divisors (see below), whose sum is σ = 1191895950960. Its totient is φ = 263116885248.

The previous prime is 647848548131. The next prime is 647848548167. The reversal of 647848548158 is 851845848746.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4660780853 + ... + 4660780991.

It is an arithmetic number, because the mean of its divisors is an integer number (8277055215).

Almost surely, 2^647848548158 is an apocalyptic number.

647848548158 is a deficient number, since it is larger than the sum of its proper divisors (544047402802).

647848548158 is a wasteful number, since it uses less digits than its factorization.

647848548158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 373 counting only the distinct ones).

The product of its digits is 275251200, while the sum is 68.

The spelling of 647848548158 in words is "six hundred forty-seven billion, eight hundred forty-eight million, five hundred forty-eight thousand, one hundred fifty-eight".